[cisco-voip] cube and address hiding

[Erick Wellnitz]

Excellent.  That was my suspicion but better safe than sorry.


On Wed, Dec 18, 2013 at 3:11 AM, <Zoltan.Kelemen at emerson.com> wrote:

>  Hi Erick,
>
>
>
> You couldn’t have address hiding and media flow-around working at the same
> time for sure. Media flow-through is the default setting anyway and address
> hiding command may or may not enforce that, but if you have media
> flow-around, then by definition there is no way the CUBE could do anything
> about media IPs.
>
>
>
> That being said, with flow-through and address hiding no internal IPs
> should wander out beyond the CUBE, so not only remote endpoints but
> provider’s border element as well would only see the CUBE’s IPs.
>
>
>
> Also, the CUBE is already acting as an MTP between AT&T and your cluster
> so you would only need to enable MTP’s in your CUCM if you need to do
> something with the traffic from your CUBE to the rest of your network (like
> DTMF conversion to a H.323 gateway or similar)
>
>
>
> Cheers,
>
>
>
> *Zoltan Kelemen*
> Global Communications and Information Security
> Implementation Engineering
> w: +40 374 132356 | m: +40 757 039093
>
>
>
> *From:* cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] *On Behalf
> Of *Erick Wellnitz
> *Sent:* Tuesday, December 17, 2013 5:39 PM
> *To:* cisco-voip
> *Subject:* [cisco-voip] cube and address hiding
>
>
>
> First major CUBE/SIP deployment using AT&T Flex Reach.
>
>
>
> Unfortunately I've had to parse two documents from AT&T as well as one
> from Cisco to get the config put together.
>
>
>
> One aspect I'm not 100% certain on is address hiding, media flow through
> and MTP.
>
>
>
> I've configured address hiding per the Cisco document.  All of the
> documentation I have read says this hides the signaling and media peer
> addresses from the endpoints.  Does this include the provider's border
> element?  Do I need medai flow through or MTP to make this work without
> advertising our network into the provider's network?
>
>
>
>
>
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